Legend:

No - your attachment gives a bit of garbled still video in 11.0 and 11.1, along with lots of errors. In the current GIT source build, I don't get the errors, but I get zero video output as well.

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No - your attachment gives a bit of garbled still video in 10.3, 11.0 and 11.1, along with lots of errors. In the current GIT source build, I don't get the errors, but I get zero video output as well.

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The ffmpeg 7, 8, and 9 builds that I referenced above display your test clip flawlessly, so it looks like this is the same problem. Let me see if I can find/create something small enough to upload as a secondary test case.